The quantity theory of money was the foundation of the gold standard.

货币数量学说①是金本位制的基础理论。

Thus was born the quantity theory of money, which has survived to this day.

货币数量理论由此诞生，并一直延续至今。

But the most dramatic example of the quantity theory at the moment is anger.

但眼下最生动的例子要数愤怒了。

Finally, the regional slide erosion is quantitatively evaluated by method of information quantity theory.

利用信息量理论对典型区域滑坡侵蚀进行定量评价研究等。

How the price level is determined and why it might change over time is called the quantity theory of money.

价格水平如何决定、它为何会随时间改变，对此的(一种)解释是货币数量论。